diff options
| author | Josef Bacik <josef@toxicpanda.com> | 2020-01-24 09:32:34 -0500 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-03-23 17:01:28 +0100 |
| commit | 88234012beaaf677dc6d3e685d270acc1bb56a03 (patch) | |
| tree | f9942ac3800577159bc0ee5a6627fba6aabf1910 | |
| parent | 3ca35e839e949811c7e35b7ef786de225a1c5008 (diff) | |
| download | linux-88234012beaaf677dc6d3e685d270acc1bb56a03.tar.bz2 | |
btrfs: hold a ref on the root in btrfs_search_path_in_tree
We look up an arbitrary fs root, we need to hold a ref on it while we're
doing our search.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
| -rw-r--r-- | fs/btrfs/ioctl.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index b173bb6915d9..9c8a9944f848 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -2328,6 +2328,12 @@ static noinline int btrfs_search_path_in_tree(struct btrfs_fs_info *info, root = btrfs_get_fs_root(info, &key, true); if (IS_ERR(root)) { ret = PTR_ERR(root); + root = NULL; + goto out; + } + if (!btrfs_grab_fs_root(root)) { + ret = -ENOENT; + root = NULL; goto out; } @@ -2378,6 +2384,7 @@ static noinline int btrfs_search_path_in_tree(struct btrfs_fs_info *info, name[total_len] = '\0'; ret = 0; out: + btrfs_put_fs_root(root); btrfs_free_path(path); return ret; } |